This is the community based forum, and Atlassian is seldom active here. You are better of making a proper support request at support.atlassian.com or contacting your 3rd party Atlassian partner for assistance with this.
Ps. the link you posted does not work
As a Jira power user, I was at first doubtful that Trello could benefit my workflow. Jira already uses boards (ones you can customize!), so why would I even need to use Trello?! In this post you will...
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